What is the most commonly used test for Starch :

Options :
  1. Sulphur Test
  2. Iodine Test
  3. Nitrogen Test
  4. All of the above


Answer and Explanation :-

Answer: Option 2

Explanation:

The Iodine fits inside the coil of Amylose the charge transfers between the iodine and the starch and the energy levels spacings in the resulting complex correspond to the absorption spectrum in the visible light region.

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